Soak cornbread and biscuits or white loaf bread in stock from giblets, milk or water.,Cook in deep skillet over medium gas flame (300° to 325° dial setting on controlled burner) until golden the onions and chopped celery in 1/3 cup hot fat.,Combine bread and onion mixture with eggs, salt, pepper, poultry seasoning (if desired) and sage (if desired).,Add stock from giblets, milk or water to thoroughly moisten.,Mix well.,Stuff bird.,If dressing is baked separately, bake in shallow uncovered baking pan in moderate gas oven (325°) for 1 hour.,______,If very light, fluffy dressing is desired, add 1 teaspoon baking powder.